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Date of Publication:2017-01-01

Journal:大连理工大学学报

Issue:1

Page Number:61-67

ISSN No.:1000-8608

Abstract:Precast thin-wall steel and spun concrete composite pile (TSC pile) is made of centrifugal casting concrete inside the steel pipe, which has many advantages in terms of force and construction.In order to study the ultimate flexural capacity and failure mechanism of such piles, three TSC piles, diameter of 800 mm and length of 10 m, are tested for flexural capacity, and the deformation and failure situation in the loading process are monitored.The test results show that TSC piles have high flexural capacity and good ductility under the bending moment.Besides, considering the nonlinear properties of materials as well as the strengthening effect of steel pipe on concrete, finite element analysis software is used to simulate the bending test, and the results are in good agreement with the test, which verifies that the FEA method is reliable to calculate the flexural capacity of TSC pile.

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